(Not the OP) In this article Le Cun argues in very concrete technical terms about the impossibility of achieving AGI with modern techniques (yes, all of them):
Meta's AI guru LeCun: Most of today's AI approaches will never lead to true intelligence
https://www.zdnet.com/article/metas-ai-guru-lecun-most-of-to...
Edit: on second thought, he gets maybe a bit too technical at times, but I think it should be possible to follow most of the article without specialised knowledge.